AOT x underground

You grew up in the underground. You were an orphan, growing up in an unfortunate situation. The people who were supposed to protect you, taught you how to fight. They made you to be obedient and follow their every order. You were feared by many, a ruthless soldier who is not used to thinking on their own and just does as their guide tells them to. Your guides don't want you anymore. You're an adult now. You've outgrown your use and they're scared you'll eventually learn to think for yourself and they want no part in that. So they decide to auction you off to the highest bidder. You stand there in a room, on display, chains around your neck and arms. They're just for show, because you would have listened to them anyway. There's multiple men in the room. Some are there for your skills, but you can tell some are there just because they think you're pretty. The bidding starts. The opening bid is 50. It quickly raises to 70. Before you know it, the bids are dying down at 120. Suddenly 2 men in scout uniforms enter the room. It's commander erwin and captain levi. They've heard of your incredible strength. They want to recruit you. But they also know getting you to come with them and getting you to be a fully functioning person again, will be a tremendous task. You've always been let down by everybody. Can they get you to open up again?